Nowadays, many people around us have the habit of smoking, and the addiction is relatively large. Although they know that smoking will cause certain harm to the body, when the addiction is committed, they still want to smoke. Relieve irritability.
Nowadays, many people are addicted to smoking. This is mainly because of their dependence on the nicotine in the smoke. When smoking, nicotine passes through the lungs, is absorbed in the lungs and quickly enters the brain, and stimulates the production of dopamine in the brain through a series of reactions. Dopamine can make people feel good.
The metabolism of nicotine is relatively fast. When you stop smoking, the nicotine decreases and the dopamine decreases. The smoker will have a feeling of irritability and headache and will continue to smoke to maintain pleasure and leading to addiction. After quitting smoking, the lungs can still recover. Pre-smoking health status? Now let's learn this together.
01
Does smoking cause nicotine poisoning?
The toxicity of nicotine actually depends on many aspects, including dose, duration, frequency of exposure, the type of nicotine product, and individual differences. Symptoms of mild nicotine poisoning include nausea, vomiting, diarrhea, increased salivation, and increased respiratory secretions. and bradycardia, poisoning will further develop into epilepsy and respiratory depression, which can lead to respiratory failure, heart failure, and even death in severe cases.
The dose of nicotine ingested by smoking is relatively safe for the human body, and it is difficult to achieve the dose required for acute toxic effects. The actual nicotine content in tobacco is relatively low. In volatilization, cigarette butt residue, and nicotine in an ionized state, only about one milligram of nicotine per gram of cigarette is absorbed on average.
Nicotine in tobacco is absorbed quickly, but at the same time, it is metabolized quickly after entering the human body. The half-life of nicotine in the body is very short, only 2 to 3 hours. Tinine, allows inhaled nicotine to be metabolized within a short period of time.
It has long been thought that the lethal dose of oral nicotine for adults is 60 mg or 30-60 mg, but many cases of poisoning and previous studies have shown that the dose is much higher, said Berger, a professor at the Department of Pharmacology and Toxicology at the University of Graz in Austria. Ndemeyer, who investigated "60 mg", concluded that "the lethal dose of oral nicotine for adults is 60 mg or 30-60 mg. This statement is not accurate and needs to be regulated."
02
Can my lungs return to normal after quitting smoking? Doctor: Do not quit smoking above this age
Long-term smoking can lead to a decline in lung function. Some patients can return to normal after smoking cessation. If lung cancer or other organic lung diseases are caused, they often cannot return to normal. However, smoking cessation can still improve the prognosis of patients and avoid disease aggravation.
Smoking is an important factor that induces chronic lung disease. If long-term smoking does not have an organic impact on lung function, generally after smoking cessation, lung function will gradually recover, and the discomfort symptoms caused will gradually decrease, such as cough and expectoration.
If the lung function deteriorates seriously or even causes lung cancer, it cannot be fully recovered after smoking cessation. It is necessary to go to the hospital to take relevant treatment as soon as possible. For malignant tumors, surgery can be used as much as possible, and postoperative radiotherapy and chemotherapy can be used.
1. Shorter smoking time: The impact on the lungs of patients is relatively small, which may lead to mild lung function decline and thickening of lung texture. After quitting smoking, after a reasonable diet and life conditioning, the lungs may recover normally.
2. Longer smoking time: The pulmonary epithelial cells of patients can develop into squamous epithelium, which is irreversible damage. In addition, smoking can also cause diseases such as emphysema and chronic bronchitis, which are irreversible diseases, so After smoking, no matter whether the lungs can recover or not, you should quit as soon as possible. Generally, the sooner you quit smoking, the better the recovery.
03
Doctor: Do not quit smoking above this age
People who smoke for a long time cause huge damage to the lungs, but some damages are not irreversible. After quitting smoking for a period of time, the cilia in the lungs may gradually recover their function, and the lungs will gradually turn pink. Studies have shown that, As long as people under the age of 35 can successfully quit smoking, their lungs can fully return to their previous normal levels.
However, the recovery time may be longer, but it also depends on personal circumstances, such as the length of smoking age, physical fitness, etc. It is certain that as long as you make up your mind to quit smoking, your lungs will definitely get better and better. Skills will also gradually become stronger.
That is to say, if you quit smoking before the age of 35, the damaged respiratory system and immune system will gradually improve, and there will be a chance to return to normal function, which can also reduce the harm caused by smoking to the body by 95%.
